Improve routine configuration: delete triggers, fix pause, add feedback

- Add trash icon button to delete triggers (full stack: service, route, API client, UI)
- Fix pause/unpause bug where saving routine could revert status by excluding
  status from the save payload (status is managed via dedicated pause/resume buttons)
- Add toast feedback for run, pause, and resume actions
- Auto-switch to Runs tab after triggering a manual run
- Add live update invalidation for routine/trigger/run activity events

Co-Authored-By: Paperclip <noreply@paperclip.ing>

ui/src/api/routines.ts

@@ -32,6 +32,7 @@ export const routinesApi = {
     api.post<RoutineTriggerResponse>(`/routines/${id}/triggers`, data),
   updateTrigger: (id: string, data: Record<string, unknown>) =>
     api.patch<RoutineTrigger>(`/routine-triggers/${id}`, data),
+  deleteTrigger: (id: string) => api.delete<void>(`/routine-triggers/${id}`),
   rotateTriggerSecret: (id: string) =>
     api.post<RotateRoutineTriggerResponse>(`/routine-triggers/${id}/rotate-secret`, {}),
   run: (id: string, data?: Record<string, unknown>) =>